Pressed insulated connector



Oct. 2l, 1947. J. RoGoFF 2,429,585

PREssED INSULATED CONNECTOR Filed June 6, 1944 [EIZ. 1:15.

flqE. Y1-.5. r1-.10. 10+- 37 35 37 INVENTOR I 10 d Julian RQyQ/j' LA-IDB Patented Oct. 2l, 1947 PRESSED INSULATED CONNECTOR Julian Rogoii,New Rochelle, N. Y., assignor to Burndy Engineering Company, Inc., acorporation of New York Application June 6, 1944, Serial No. 538,891

1 claim. (ci. 17g-s4) My invention relates to insulated wire connectors,and the principal object of my invention is to provide aninsulation-covered electrical connector whereby a connection can beestablished by simply inserting the wires into the covered connector andcompressing the connector through the insulation cover to establish anefficient mechanical and electrical connection.

I accomplish these and other objects and obtain my new results as willbe apparent from the device described in the following specification,particularly pointed out in the claim, and illustrated in theaccompanying drawing in which:

Fig. 1 is a side elevation of one form of my insulation coveredconnector with wires inserted therein and before crimping.

Fig. 2 is a top view thereof, partially in section.

Fig. 3 is an end view after crimping.

Fig. 4 is the top view thereof.

Fig. 5 is a longitudinal cross-sectional view of a modified form beforeindentation.

Fig. 6 is a similar view after indentation.'

Fig. 7 is the top view thereof.

Fig. 8 is a longitudinal cross-sectional view of a further modified formemploying a spring type of connector.

Fig. 9 is a cross-sectional view of the same, taken through 8--9 of Fig.8.

Fig. 10 is a similar view illustrating the conductors positionedtherein.

Referring more particularly to Figs. l and 2 of the drawing, referencenumeral I0 designates a tubular copper sleeve which may be force-fittedinto an insulating cover The cover is provided with an opening |2,through which the sleeve |0 is inserted. A skirt I3 peripherally extendsfrom the cover, about the opening, to insure proper insulation of theexposed wires il at the point of connection.

Where a plurality of wires are to be joined' into a single connection,the exposed ends may be twisted together before insertion and thereaftera tool may be applied to the body of the cover compressing the wallthereof, and forcing the sleeve to be securely indented to the wires.This is shown in Figs. 3 and 4.

Various methods of securing the insulating cover to the metal sleeve maybe employed. As

has been indicated, one method is to force fit the 2 the sleeve`tdprevent removal thereof, as shown in Figs. 1 and 3.

The insulation itself may be of any well-known type which can withstanda compression, indentation, or crimping without cracking or cutting theinsulation, such as rubber, a copolymer of vinyl chloride, vinylacetate, etc. In some cases the insulating material may be baked on thesleeve.

Where an end to end connection is desired, the cover` may have theskirted section on both ends of the open sleeve, as shown in Figs. 5, 6and 7. Here the sleeve 20 is of sufilcien-t length to allow the exposedwires 2| and 22 to be inserted into the ends of the sleeve. The body ofthe insulation cover 23 extends over the sleeve 20 and overlaps the wireends 2|l and 22, to form skirts 2l and 25 where the wire insulation 28and 21 is cut to expose the wires.

As shown in Fig. 6, an indenting tool provided with jaws 28 and 29compresses the sleeve 20 to the Wire ends 2| and 22, through the cover23, forming indentations 30 and 3|. The sleeve should be made ofthick-walled malleable stock to withstand the indenting action.

In Figs. 8, 9 and 10, I have shown a modified form of connector whereina removable type of spring-flexed gripping means is employed forsecuring the wires, operated by compressing theA developing a highdegree of resiliency for securing the end of the wires. The two ends ofthe strip are notched to form jaws 36 and 3l and which will interlockwith wires 38 and retain them by spring pressure. The clip 35 isinserted into a moulded cup-shaped cover 40, having a hollow portion 4|for containing the clip, a peripheral shoulder 42, for securing ittherein, with an extending skirt 43 for covering the exposed enteringwires 38.

The flexible cover 40 is compressed at points 4I, which dauses the clip35 to open to permit the wires 38 to be inserted into the hollow portion4| and between jaws 38 and 31. Upon releasing the pressure on the cover,`the jaws will grip the wires. retaining them.

The cover may be opened at both ends to permit end to end connection asshown in Fig. 5.

In the foregoing devices, I have illustrated a wire connectorprovidedwith a flexible insulating cover attached thereto, the walls ofthe cover being compressible to secure the enclosed metal connector to aconductor inserted therein, thereby permitting the insulated metalconnectors to be used for establishing electrical connection without thenecessity of iirst removing the insulation from the connector beforesecuring the wire to the connector and thereafter replacing theinsulation.

I have thus described my invention, but I desire it understood that itis not conned to the particular forms or uses shown and described, thesame being` merely illustrative, and that the invention may be carriedout in other ways without departing from the spirit of my invention,and,

therefore, I claim broadly the right to employ al1 equivalentinstrumentalities coming Within the scope of the appended claim, and bymeans of which, objects of my invention are attained and new resultsaccomplished, as it is obvious that the particular embodiments hereinshown and described are only some of the many that can be employed toattain these objects and accomplish these results.

I claim:

A connector for use in a crimped joint comprising a cylindrically shapedmetal body portion having an open end for receiving a conductor therein;a substantially non-elastic insulating cover thereon, said insulatingcover having the JULIAN ROGOFF.

REFERENCES CITED The following references are oi' record in the ille ofthis patent:

UNITED STATES PATENTS 15 Number Name Date 2,173,668 Smith Sept. 19, 19391,975,885 Wellman Oct. 9, 1934 2,209,743 Xenis July 30, 1940 2,314,884Klein Mar. 30, 1943 20 2,259,261 Miller et al Oct. 14, 1941 1,700,985Jasper Feb. 5, 1929 1,896,322 Marr Feb. 7, 1933 2,122,252 Hayes June 28,1938 1,585,840 Fahnestock May 25, 1926 25 2,188,178 Eby Jan. 23, 19402,276,571 Grypma, Mar. 17, 1942 2,119,146 Adams May 31, 1938 Watts Oct.29, 1946

